.aaa {
  font-size: 20px;
  font-weight: bold;
}
#bbb {
  text-indent: 20px;
  overflow: hidden;
}
.xxx {
  text-decoration: underline;
  /* 混合（混入） */
  font-size: 20px;
  font-weight: bold;
  text-indent: 20px;
  overflow: hidden;
  color: #00f;
  background: #00f;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-direction: column;
  font-size: 30px;
  color: green;
  text-overflow: ellipsis;
}
